The Internet of Things (IoT) enables to connect heterogeneous electronic devices in an efficient, sustainable and continuous way, allowing a level of human-to-machine and machine-to-machine interaction never reached before. These devices can be exploited to collect a large amount of data, which in turn allow making decisions and driving other electronic devices for a wide variety of applications. Thanks to the technologies developed in the field of Big Data, the collected data can be stored and automatically processed in order to support decisions, improve processes, and improve the quality of services and products. With the advent of Industry 4.0, IoT technologies have been increasingly applied in the industrial sector.